5.3

CVE-2021-3476: debian debian_linux Integer Overflow or Wraparound

CVSS: 5.3v3.1MediumModified
AliasesUBUNTU-CVE-2021-3476DEBIAN-CVE-2021-3476
Published 30-03-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-3476 is a medium (CVSS 5.3) Integer Overflow or Wraparound vulnerability in debian debian_linux. EPSS estimates a 1.85% chance of exploitation in the next 30 days, higher than 78.7% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (NVD)
EPSS score
1.85%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 10 · Related 7
DLA-2701-1DLA-3236-1MGASA-2021-0326OPENSUSE-SU-2021:0536-1OPENSUSE-SU-2021:1198-1OPENSUSE-SU-2021:2793-1

Timeline

  1. 30-03-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

A flaw was found in OpenEXR's B44 uncompression functionality in versions before 3.0.0-beta. An attacker who is able to submit a crafted file to OpenEXR could trigger shift overflows, potentially affecting application availability.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.85%

Chance of exploitation in the next 30 days

Percentile

79%

Versus all other CVEs

30-day change

0.00 pp

From 1.85% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.85%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian2 products
Openexr1 product
  • openexr< 2.4.3 | ≥ 2.5.0, < 2.5.4
Ubuntu1 product
  • openexr< 2.2.0-10ubuntu2.6 | < 2.2.0-11.1ubuntu1.6 | < 2.3.0-6ubuntu0.5

3 vendors · 4 products

References

9 links